package com.yunpai.SevenPr.Interfacedivide;

/**
 * 主入口
 */
public class Main {

    public static void main(String[] args) {
	 A a =new A();
	 a.operation1(new B());
	 a.operation2(new B());
	 a.operation3(new B());
	 C c =new C();
	 c.operation1(new D());
	 c.operation4(new D());
	 c.operation5(new D());
    }
}
